General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 51306 Walnut Valley Water District Special District 271 South Brea Canyon Road Walnut, CA 91789 909-595-1268 null Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 823814 Walnut Valley WS Los Angeles 4 Utility Structure Owner and Operator 04/13/2016 null 273592 Well Facility Los Angeles 4 Facility Owner 09/27/2000 null 273365 Walnut Valley WD Los Angeles 4 Facility Owner 05/07/1990 null 267206 Thatcher Well Los Angeles 4 Facility Owner 03/29/2001 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 555719 Michael Holmes Person Employee 04/13/2016 null null Regulatory Measures(non-enforcement) Reg. Measure ID Regulatory Measure Type Region WDID Title Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date 405674 Enrollee - NPDES 4 4DW0470 Enrollee - NPDES under Order 2014-0194-DWQ Drinking Water System Discharges for Walnut Valley Water District Active NPDNONMUNIPRCS 2014-0194-DWQ 04/08/2016 null Discharger 04/13/2016 null 193526 Enrollee 4 4B196000572 4B196000572 Historical NPDNONMUNIPRCS 97-045 04/18/2001 09/17/2002 Discharger 09/01/2005 null 193515 Enrollee 4 4B196000555 4B196000555 Historical NPDNONMUNIPRCS 97-045 12/19/2000 09/23/2002 Discharger 09/01/2005 null 146131 NPDES Permit 4 4B192546001 NPDES 00-01002 for WALNUT VALLEY WATER DISTRICT Historical NPDESWW 00-01002 01/26/2000 01/27/2000 Discharger 01/26/2000 null 134582 NPDES Permit 4 4B192546001 NPDES 90-131 for WALNUT VALLEY WATER DISTRICT Historical NPDESWW 90-131 09/24/1990 01/25/2000 Discharger 09/24/1990 null Violations within the past calendar year Violation ID Occurrence Date Violation Type Violation Description Violation Status Priority Source Facility Name Violated Reg. Meas. ID Violated Reg. Meas. Order No. Linked To Enf. Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status 405674 Michael Holmes Enrollee - NPDES NPDNONMUNIPRCS 04/08/2016 Active